HTC Desire 12
Why won't my phone lock even when I've already set up a screen lock password?
How do I get past the Google login screen after I reset my phone?
What can I do if I forgot my screen lock password, PIN, or pattern on my phone?
What should I do when my phone gets lost or stolen?
What is Smart Lock and how do I use it?
Why am I prompted to enter a password to decrypt my phone when I restart or turn it on?
When I removed my screen lock, a message appears saying device protection features will no longer work. What does device protection mean?
How do I automatically save photos and videos to my storage card?
Photos appearing blurred? Here are some tips
Calls and SIM
Can I cut my micro SIM to a nano SIM so it can fit in my phone?
Power and charging
How does Doze mode save battery power?
How does App standby in Android save battery power?
In Settings, what is Battery optimization used for?
After the screen has been off for a while, why am I not receiving mail and instant message notifications? Internet radio broadcast also stopped.
What can I do if my phone will not power on?
How do I reboot the phone using hardware buttons?
What can I do if my phone keeps rebooting or won't boot all the way to the Home screen?
What should I do if my phone will not charge?
Why does my battery drain so quickly?
How do I save battery power?
How do I check the latest software updates for my phone?
What should I do before I update the software of my phone?
What should I do if I am unable to install software updates?
How do I test the audio, display, and other parts of my phone?
Why is my phone acting sluggish and freezing?
Why does my phone turn off by itself?
What's the best way to end or close apps?
How do I check how much memory my phone has and how much memory is being used?
How do I restart my phone into Safe mode?
In the Notifications panel, how do I remove the notification that says a certain app is running in the background?
What should I do if my phone gets too warm or hot?
Backup and transfer
How do I back up my photos and videos?
How do I copy files between my phone and computer?
Audio and display
I think my microphone is broken. What should I do?
Why doesn't Google Assistant launch when I say, "OK Google"?
I keep exiting the game I'm playing because I pressed the RECENT APPS or BACK button by accident. How can I avoid this?
What is screen pinning, and how do I pin an app?
What does Google Play Protect do, and how do I check if it's enabled?
How do I sign in to my Microsoft email account from the Mail app?
Why are the apps on my phone crashing and force closing?
How do I know if I've installed a malicious third-party app on my phone?
How do I set the default SMS app?
How do I see the list of running apps?
How do I enable developer's options?
I keep getting prompted to grant permissions when using apps. Why is that?
Why can't I play WMA music files in Google Play Music?
Is there a way to show the weather on the lock screen even when GPS is off?
Why don't app icons show the unread count anymore, such as unread messages and notifications?
Wireless and networks
How do I share my phone's Internet connection with other devices?
How do I know if my phone can be used in another country's local network?
I sent some files via Bluetooth to my computer. Where are they?
How do I add the access point to my mobile operator's network?
How do I copy or move files and folders to my storage card?
How do I view the files and folders from my USB drive?
When formatting my storage card for use as internal storage, I see a message saying the card is slow. Why is that?
My phone is brand new, but the available storage is lower than the total capacity. Why is that?
What's the difference between using the microSD card as removable storage and internal storage?
Settings and others
How do I find the IMEI/MEID and serial number of my phone?
Why is my phone talking to me? How do I turn this off?
How do I enable or disable a device administrator app?
Features you'll enjoy
Android 7 Nougat
Unboxing and setup
HTC Desire 12 overview
Inserting the nano SIM and microSD cards
Charging the battery
Switching the power on or off
Setting up HTC Desire 12 for the first time
Adding your social networks, email accounts, and more
Choosing which nano SIM card to connect to the 4G LTE network
Choosing which SIM card to use for sending SMS and MMS
Managing your nano SIM cards with Dual network manager
Your first week with your new phone
HTC Sense Home
Turning Sleep mode on or off
Unlocking the screen
Restarting HTC Desire 12 (Soft reset)
Selecting, copying, and pasting text
Getting to know your settings
Using Quick Settings
Capturing your phone's screen
How can I type faster?
Software and app updates
Installing a software update
Installing an application update
Installing app updates from Google Play Store
Home screen layout and fonts
Adding or removing a widget panel
Changing your main Home screen
Changing the default font size
Widgets and shortcuts
Adding Home screen widgets
Adding Home screen shortcuts
Grouping apps on the widget panel and launch bar
Moving a Home screen item
Removing a Home screen item
Changing your ringtone
Changing your notification sound
Setting the default volume
Taking photos and videos
Taking a photo
Applying a filter
What you can do on Google Photos
Viewing photos and videos
Editing your photos
Trimming a video
Installing and removing apps
Getting apps from Google Play Store
Downloading apps from the web
Uninstalling an app
Working with apps
Accessing your apps
Controlling app permissions
Setting default apps
Setting up app links
Disabling an app
HTC Sense Companion
Recording voice clips
Calls, Messages, and Contacts
Making a call
What can I do during a call?
Setting up a conference call
Switching between silent, vibrate, and normal modes
SMS and MMS
Sending a text or multimedia message via Android Messaging
Your contacts list
Setting up your profile
Adding a new contact
Editing a contact’s information
Getting in touch with a contact
Importing contacts from your nano SIM card
Sending contact information
Battery and Storage
Checking battery history
Battery optimization for apps
Tips for extending battery life
Using battery saver mode
Checking battery usage
Freeing up storage space
Types of storage
Should I use the storage card as removable or internal storage?
Moving an app to or from the storage card
Setting up your storage card as internal storage
Moving apps and data between the phone storage and storage card
Copying or moving files between the phone storage and storage card
Copying files between HTC Desire 12 and your computer
Unmounting the storage card
Backup, Transfer, and Reset
Backup and reset
Backing up HTC Desire 12
Resetting network settings
Resetting HTC Desire 12 (Hard reset)
Turning the data connection on or off
Managing your data usage
Connecting to VPN
Installing a digital certificate
Using HTC Desire 12 as a Wi-Fi hotspot
Sharing your phone's Internet connection by USB tethering
Turning Bluetooth on or off
Connecting a Bluetooth headset
Unpairing from a Bluetooth device
Receiving files using Bluetooth
Do not disturb mode
Automatic screen rotation
Setting when to turn off the screen
Adjusting the display size
Touch sounds and vibration
Changing the display language
Changing the display font
Assigning a PIN to a nano SIM card
Setting a screen lock
Setting up Smart Lock
Turning the lock screen off
Navigating HTC Desire 12 with TalkBack
< < Menu
Get more from the
app than just the regular date and time. You can check the times around the world, set an alarm, and use the stopwatch. Learn more about
by going to
Was this information helpful?
Can’t find what you’re looking for?
Email / Chat
HTC Desire 12
Choose your device version
CHOOSE A MANUAL
English - Quick start guide
English - User manual
*Please enter your comment here...